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�> PD-847 SeNSUS SR° Water Meters METERING SYSTEMS �iUe z Magnetic give til water 1-1/2" (DN 40mm) and 2" (DN 50mm) Sizes Applications:Measurement of cold water where flow is in one direction;in residential,commercial and industrial services. 14 Conformance To Standards:Sensus Sealed Register Water Meters comply with ANSI/AWWA Standard C700,latest revision. I Each meter is tested to insure compliance. Construction:Sensus SR Water Meters consist of three basic components:maincase;measuring chamber;permanently,her- TRT metically-sealed register.Maincases are of bronze with either flanges®internally-threaded spuds.Measuring chambers are of a i Rocksyn ,a corrosion-resistant thermoplastic material.Bronze measuring chambers are available as an option. Sealed Register:Permanently,hermetically sealed;proven 1-1/2 SR' s 4 2"SR' magnetic drive design;with integral tamper-proof locking device. (DN 40mm) (DN 50mm) Guaranteed for 25 years.The standard register Includes a straight- reading,odometer-type totalization display;a 360°test circle with SERVICE Measurement of cold water with flow in only one direction. center sweep hand;and a low flow(leak)detector.Gears are self- NORMAL 1 1/2"(DN 40mm)size:5 to 100 gal/min.(1.1 to 23.0 m3h) lubricating,molded plastic for long life and minimum friction.The OPERATING 2'(ON 50mm)size:8 to 160 gal/min.(1.8 to 36.0 m3h) hermetic sealing of the register eliminates dirt and moisture.tam- FLOW RANGED pering,and lens fogging problems. ACCURACY 100%:1.5%of actual thruput No change gears are required for accuracy calibration.Encoded- LOW FLOW 1-1/2"(DN 40mm)size:95%at 1-1/2 gal/min.J0.35 m3h) type remote reading systems are available for all SR Water Meters. REGISTRATION 2"(ON 20mm)size:95%at 2 gal/min.(0.45 m h) (See back of sheet for additional information.) Tamperproof Features:Removing the register to obtain free MAXIMUM 1-1/2'(DN 40mm)3size:11.4 psi at 100 gal/min. water is prevented by a locking device inside the meter.Removing PRESSURE LOSS (0.8 bar at 23.0 m h) 2'(ON 50mm)size:12.1 psi at 160 gal/min. the register requires a special tool that is availabl�!only to water utili- (0.8 bar at 36.0 m3h) ties. MAXIMUM 150 psi(10.0 bar) Magnetic Drive:The unique design of the direct magnetic drive OPERATING is a positive,reliable,dependable drive coupling,proven in mil- PRESSURE lions of SR Water Meters. MEASURING Oscillating piston Operation:Water flows through the meter's strainer and into the ELEMENT measuring chamber where it operates the piston.The piston, REGISTER Straight reading,hermetically sealed,magnetic drive with low which moves freely,oscillates around a central hub,guided by the flow indicator. rubber-coated division plate. Remote reading unit optional. REGISTRATION 100,000,000 gallons, A drive magnet,incorporated in the piston,rotates around the out- 100 gallon/sweep hand revolution side of the hermetically sealed register well and magnetically 10,000,000 cubic feet drives the"follower"magnet sealed within the well.The"follower" 10 cubic feet/sweep hand revolution magnet drives a crank connected to the register gear train,which 100,000 m3 translate the number of piston oscillations into volume totalization 0.1 m3/sweep hand revolution units displayed on the register face. METER 1-1/2'(ON 40mm)size:two bolt oval flanged spuds or 1-1/2" CONNECTIONS® (ON 47.80mm)internal pipe threads Maintenance:Sensus Sealed Register Water Meters are engi- 2-(ON 50mm)size:two bolt oval flanged spuds or 2' neared to provide long-term value and virtually maintenance-free (59.61 mm)internal pipe threads operation because of their design simplicity and interchangeability (Threads are taped pipe,Internal type,conforming to ANSI of modules.Sensus SR Water Meters are easy to repair,even with- B1.20.1 or ISO R-7 if specified.Flanges are AWWA 125 pounds out removing the maincase from the installation.As an alternate to [PN 10 bar]class.) repair by the utility,Sensus offers various maintenance programs MATERIALS Maincase—Bronze which provide factory reconditioning of the maincase and replace- Measuring chamber—Rocksyn—standard ment of components at low fixed prices. Bronze—optional Connections:Tailpieces/Companion Flanges for installing the Magnets—ceramic and Alnico of a and sizes are available as an option. Strainer—Thermoplastic meters on a variety f�P Trim---Stainless Steel For flanged meters,the use of a Smith-Blair Mode)926 Flanged Casing bolts—Stainless Steel Coupling Adapter is recommended to facilitate the installation and r0 Maximum rales listed are for intermittent flow only.Maximum continuous flow rates as any future removal of the meter from the line. specified by A4VWA are: 1-1/2'(DN 40mm)size:50 gal/min(11.0 m3h) 2'(DN 50mm)size:B0 gal/min(18.0 m3h) Q Flanged spuds are standard for 1.1/2'(DN 40mm)and 2'(ON 50mm)size meters and will be furnished unless otherwise specified.Internal tapped pipe threads only are sup- plied for ISO meters. Page 1 of 2